Embroidering-machine.



- R. CORNELY.

EMBROIDERING MACHINE. APPLICATION FILED JAN-24, I913.

I mmm Patented June 22, 1915.

2 SHEETS-SHEET 2- avwemtoz Bonner CORNELY, or'rnnrs, FRANCE.

nMBnorDERrnaMAomnn Specification of Letters Patent.

Application filed January 24, 1913. Serial No. 744,0Q7.

T all whom it may concern:

Be it known that 1, ROBERT GonNELY,.a

citizen of the United States, resident of.

ously, are well known as fitted with rotating disks, drums or cylinders provided with a pattern-cam which controlsthe shape or design of the embroidery or scallops to be produced. This pattern-cam was arranged to control by means of a roller orthe like engaging in said cam and by means of suitable transmissions, according to the style .of the machine, either the longitudinal displacement of the rotating feed roller, or the lateral oscillations of the needle or needles across the direction of the feed; In order to 1 prevent the wear of the pattern-cam from spoiling the beauty and regularity of the work, it was necessary to make said patterncams as large as possible, viz. to give a diameter as large as possible to the disks,

drums or cylinders of the pattern-cam, which thus became very heavy. But as these disks or cylinders of the pattern-cam do not perform a continuously rotating motion, but.

only turn stitch for stitch of the machine, usually by means of a pawl and ratchet wheel or a similar arrangement, so that they have to be started and stopped at every sinof a hollow cylinder, which arrangement hasthe advantage of protecting the -pattern-cam and all organs working Within said cylinder against dust and exterior shocks.

Patenteddune22,ll915.

Figure 1 is a front elevational view and,

Fig. 2 is a verticalcentral sectional view on I the line AB of Fig. 1, showing an embodiment of my invention. Fig. 3 is a plan view of Fig. 1. Fig. 4 is a longitudinal sectional view showing another embodimentof my improvement. Fig. 5 is a ,vertical sectional view taken on the line CD of Fig. 4. Fig. 6 is a view in vertical section showing another embodiment of the invention and Fig. 7 is an elevational detail. Fig. 8 is a detail. view illustratinga 'modification.

Referring to Figs. 1, 2 and 3 the bar *1. of the presser foot of the machine is provided with abracket '2 which ascends and descends together with said bar 1. Bracketv 2 is provided with asocket 3 to which the cylinder 4 of the pattern-cam 16a is secured in'any suitable way.

The under shaft 5 of the machine is-provided with a cam 6 which by means of lever '7 and pitman 8 transmits an oscillating motion to lever 10 which is provided with a pawl 9 which controls ratchet wheel 11. This ratchet ,wheel 11 is provided with a key 14 which engages in a groove 13 ofshaft 12- which' thus receives a turning motion 7 7 while at the same time said shaft'l2 can be displaced longitudinally;

Shaft 12- is provided with -.a roller 15 which engages in the pattern-cam groove-16 thus transmitting-to shaft 12 a longitudinal shifting movement according to the shape of the pattern-cam 16 while it rotates, which combined motion is transmitted to the feed roller 17 secured at the other end of shaft 12,. and this roller thus feeds the material in the well known manner according to the shape and design of the pattern-cam 16.

Figs. 4 and '5show an example'of an a? 5 rangement of a fixed pattern-cam for controlling the lateral displacements of the needle-bar or bar's. Main shaft 19. of the machine is provided with an eccentric 20 which by means of pitman 21 moves lever '10,

pawl9 and ratchet wheel 11. The shaft 12- is provided with a groove B which permits '.its longitudinal movement while it rotates as described with. regard to Figs. 1, 2 and 3and said shaft 12 is provided with a colj since the other endof rod 23 is secured to the lar thrust bearing 22'with which engages, the suitably arranged end of rod 23, which movable bracket 2425 of the needle-bar 26 which thus receive a to and fro motion according to the shape of the pattern-cam.

It is clear that the pattern-cam which has 5 been shown as example only, provided interiorly of a fixed cylinder 4:, might just as well be provided on the exterior of said cylinder, as illustrated in Fig. 8.

Figs. 6 and 7 show that the pattern-cam 10 may just aswell be provided on a non-revolving disk 29 with which engages a roller 28 secured on a lever 27 jointed to the shaft which is rotated and eventually shifted in the same manner as above described. I

It will be readily understood that by the use of this non-revoluble pattern-cam which forms the object of the present, invention,v

the following results are obtained: (1) Since the cylinder or disk of the patterncam does not revolve, the weight of said cylinder or disk is not a drawback and therefore, my invention allows the use of larger pattern-cams which are submitted to regular work. (2) The cylinder or disk of the pattern-cam remaining motionless the constant shocks resulting from the intermittently revolving pattern-cams used heretofore are obviated, which allows the machine to be driven at higher speed and with less wear.-

I am aware of prior patents in which came or other means are employed to control and vary the length of zig-zag or laterally-formed stitches which extendlaterally from or. across 'a straight line of forward advance of the work. But such lateral va-' riation in the length of stitches and the resulting design of seam thereby-formed does 40 not constitute a variation or'change in the direction of the seam within the meaning of that language asemployed in some of the claims herein.

Claims:

.1. In a sewing machine adapted to pro of theseam, a movable member adapted to engage and be guided in its movement b said pattern cam and to relatively shift the needle and work laterally under control of said pattern cam to vary thedirection of the seam, and driving connections for actuating said movablemember. I 2. In; a sewing machine adapted to pro- "duce seams of predetermined and automatically repeated design, mechanism for relatively shifting the needle and work less wear and produce a better and more in conformity with the desired pattern as the work advances through the machine and the formation of the seam progresses, said mechanism comprising a fixed pattern cam adapted to determine and vary the direction of the seam, a rotary member adapted to engage and follow said pattern cam 1n 1ts rotation and to relatively shift the needle and work laterally under control of said pattern cam to vary the direction of the seam, and driving connections for rotating said member.

3. In a sewing machine adapted to produce seams of predetermined and automatically repeated design, mechanism for relatively shifting the needle and work laterally in conformity with the desired pattern as the work advances through the machine and the formation of the seam progresses, said mechanism comprising a fixed annular pattern cam surface, a rotary member adapted to engage, and follow said pattern cam in its rotation and'to relatively shift the needle and work laterally under control of said pattern cam, and driving connections for rotating said' member.

4. In a sewing machine adapted to produce seams of predetermined and automatically repeated design, mechanism' for relatively shifting the needle and work laterally in conformity with the desired pattern as the work advances and the formation of the seam progresses, said mechanism comprising a fixed annular pattern cam surface: a rotary and longitudinally movable shaft having its axis approximately coincident with that of the annular pattern cam surface and also having a part adapted to progressively contact said pat tern-cam during rotation of the shaft to longitudinally move the shaft under control of said pattern-cam, means associated with said shaft to relatively shift the needle and work laterally in accordance with the longitudinal movement of the shaft, and driving connections for rotating said shaft.

5. In a sewing machine adapted to produce seams of predetermined and automatically repeated design, mechanism for relatively shifting the needle and work laterally in conformity with the desired pattern as the work advances and the formation of the seam progresses, said mechanism comprising a fixed part having a y. cylindrical interior surface formed with a cam-groove therein constituting a pattern for the desired. design, a rotary and longitudinally movable shaft having its axis approximately coincident with that of said cylindrical surface and also having a part extending into engagement with said camgroove, driving connections for rotating .said shaft and thereby imparting longitudinal movement to the shaft under conseams of predetermmed design to be automatically repeated, a rotary feed member adapted. to be displaced transversely oi the direction of the feed of the work, a staeepflee c5. patent may be chance. flex-five cents each, by Mdxeeemg the itli t tionary pattern, cam;, and a revoluble shaft 1e adapted to be reciprocate/d1 by said cam anl havmg connection with said feed-member to displace the same as described.

ROBERT CORNELY.

' itnesses:

- HANSON 0. Com, JACK G. BAKER.

calmer ct Eetemtt,

Wee h ate e m. t3. 

